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21116 (1992 SO)
Classification: Main-belt Asteroid          SPK-ID: 2021116
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1641834496927871 3.4224e-08  
a 2.319495917854132 5.5096e-09 au
q 1.938673076512503 8.0167e-08 au
i 5.758773673906325 2.4231e-06 deg
node 244.1780667156204 3.5529e-05 deg
peri 79.41532864665102 3.6601e-05 deg
M 89.58171627865515 7.6662e-06 deg
tp 2459075.425567472573
(2020-Aug-13.92556747)
2.7575e-05 TDB
period 1290.29449882749
3.53
4.5973e-06
1.259e-08
d
yr
n .279006072123176 9.941e-10 deg/d
Q 2.700318759195761 6.4142e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2383  
   data-arc span      10366 days (28.38 yr)  
   first obs. used      1992-09-26  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45249  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 14:57:50  

Additional Information
 Earth MOID = .93576 au 
 Jupiter MOID = 2.61982 au 
 T_jup = 3.554 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457313.5 (2015-Oct-18.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1638652608577891 3.4146e-08  
q 1.940102572771474 7.9942e-08 au
tp 2457785.700635796972
(2017-Feb-01.20063580)
2.8637e-05 TDB
node 244.2168578651108 3.5522e-05 deg
peri 79.52600486878602 3.66e-05 deg
i 5.758363519205657 2.4232e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2383  
   data-arc span      10366 days (28.38 yr)  
   first obs. used      1992-09-26  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45249  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 14:57:50  

Additional Information
 Jupiter MOID = 2.61982 au 
 T_jup = 3.554 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.165968577048844E-15 -2.725176124245526E-15 1.339848487779621E-13 1.912932590814127E-15 2.799954218404013E-14 -4.2456497700015E-15
q -2.725176124245526E-15 6.390736980027932E-15 -3.487367262352925E-13 -4.419130580927627E-15 -7.876386142929264E-14 9.953107019654053E-15
tp 1.339848487779621E-13 -3.487367262352925E-13 8.200826629542375E-10 4.345503423846591E-12 2.651526753348444E-10 -8.948693672666897E-13
node 1.912932590814127E-15 -4.419130580927627E-15 4.345503423846591E-12 1.261811196471967E-9 -1.254095918580417E-9 2.120058638106414E-13
peri 2.799954218404013E-14 -7.876386142929264E-14 2.651526753348444E-10 -1.254095918580417E-9 1.339555218292854E-9 -4.55414932033091E-13
i -4.2456497700015E-15 9.953107019654053E-15 -8.948693672666897E-13 2.120058638106414E-13 -4.55414932033091E-13 5.871965070384728E-12

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.44   n/a E2021B10  
rotation period rot_per 69.3549 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

21116 (1992 SO)          Discovered 1992-Sep-26 by Sugie, A. at Dynic
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1992 SO = 1998 FZ105 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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